The document discusses linear equations and their graphs. It provides examples of calculating y-values for given x-values using equations of the form y=mx+b. It also calculates the slope and y-intercept of lines from their equations. The x- and y-intercepts of lines are identified by setting x and y equal to 0 in their equations.

1. by:
Raymund T. de la Cruz

3. If x = 0
y= 2(0) + 1
y = 1
If x = 1
y= 2(1) + 1
y = 3

4. 2 64-2-6 -4
2
6
4
-2
-6
-4

5. x -
intercept
y -
intercepty = 0 or (a, 0) x = 0 or (0, b)
If x = 0
y= 2(0) - 2
y = -2
If y = 0
0 = 2x - 2
2 = 2x
1 = x
x = 1

6. 2 64-2-6 -4
2
6
4
-2
-6
-4
x -
intercept
y -
intercept

7. m =
2
3
rise = 2
run = 3
b = −2

8. 2 64-2-6 -4
2
6
4
-2
-6
-4
m =
2
3
b = −2

9. m = -
3
2
rise = −3
run = 2
If x = 2
y= -
3
2
(2) + 1
y = -3 + 1
y = -2
(2, -2)

10. 2 64-2-6 -4
2
6
4
-2
-6
-4
m = -
3
2
(2, -2)